GB2328844B - Power supply for use in a portable appliance - Google Patents

Power supply for use in a portable appliance

Info

Publication number
GB2328844B
GB2328844B GB9718471A GB9718471A GB2328844B GB 2328844 B GB2328844 B GB 2328844B GB 9718471 A GB9718471 A GB 9718471A GB 9718471 A GB9718471 A GB 9718471A GB 2328844 B GB2328844 B GB 2328844B
Authority
GB
United Kingdom
Prior art keywords
power supply
portable appliance
appliance
portable
supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9718471A
Other versions
GB2328844A (en
GB9718471D0 (en
Inventor
Mark Corbridge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Technologies UK Ltd
Original Assignee
NEC Technologies UK Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Technologies UK Ltd filed Critical NEC Technologies UK Ltd
Priority to GB9718471A priority Critical patent/GB2328844B/en
Publication of GB9718471D0 publication Critical patent/GB9718471D0/en
Publication of GB2328844A publication Critical patent/GB2328844A/en
Application granted granted Critical
Publication of GB2328844B publication Critical patent/GB2328844B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/005—Reducing noise, e.g. humm, from the supply
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2215/00—Reducing interference at the transmission system level
    • H04B2215/061—Reduction of burst noise, e.g. in TDMA systems
    • H04B2215/063—Reduction of burst noise, e.g. in TDMA systems by smoothing the transmission power envelope
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2215/00—Reducing interference at the transmission system level
    • H04B2215/069—Reduction of switch mode power supply ripple
GB9718471A 1997-09-02 1997-09-02 Power supply for use in a portable appliance Expired - Fee Related GB2328844B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9718471A GB2328844B (en) 1997-09-02 1997-09-02 Power supply for use in a portable appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9718471A GB2328844B (en) 1997-09-02 1997-09-02 Power supply for use in a portable appliance

Publications (3)

Publication Number Publication Date
GB9718471D0 GB9718471D0 (en) 1997-11-05
GB2328844A GB2328844A (en) 1999-03-03
GB2328844B true GB2328844B (en) 2002-03-27

Family

ID=10818322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9718471A Expired - Fee Related GB2328844B (en) 1997-09-02 1997-09-02 Power supply for use in a portable appliance

Country Status (1)

Country Link
GB (1) GB2328844B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2788647B1 (en) * 1999-01-18 2001-03-30 Cit Alcatel POWER SUPPLY FOR RADIOCOMMUNICATION TERMINAL
FR2792781B1 (en) * 1999-04-26 2001-07-13 Cit Alcatel METHOD AND DEVICE FOR POWER SUPPLY IN A MOBILE DEVICE
GB2366134B (en) * 2000-07-18 2004-02-18 Nokia Mobile Phones Ltd Mobile data transmission
WO2004040744A1 (en) * 2002-10-30 2004-05-13 Koninklijke Philips Electronics N.V. Audio system with inactive smps during tuner search
GB2403608B (en) * 2003-06-30 2005-08-17 Motorola Inc Apparatus and method for power distribution
DE102005021810A1 (en) * 2005-05-04 2006-12-28 Siemens Ag TDMA communication device with PWM component
GB2438257B (en) * 2006-05-20 2011-01-26 Ford Global Tech Llc Receiving apparatus having a low quiescent current
US7986122B2 (en) * 2007-09-26 2011-07-26 Enphase Energy, Inc. Method and apparatus for power conversion with maximum power point tracking and burst mode capability

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994011799A1 (en) * 1992-11-10 1994-05-26 Motorola, Inc. Switching regulator and amplifier system
US5423078A (en) * 1993-03-18 1995-06-06 Ericsson Ge Mobile Communications Inc. Dual mode power amplifier for analog and digital cellular telephones
GB2308950A (en) * 1996-01-08 1997-07-09 Matsushita Communication Ind U Power supply for intermittent load
GB2310570A (en) * 1996-02-21 1997-08-27 Motorola Israel Ltd Subscriber unit with power supply operable in linear and switched modes; portable radio data packet modem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994011799A1 (en) * 1992-11-10 1994-05-26 Motorola, Inc. Switching regulator and amplifier system
US5423078A (en) * 1993-03-18 1995-06-06 Ericsson Ge Mobile Communications Inc. Dual mode power amplifier for analog and digital cellular telephones
GB2308950A (en) * 1996-01-08 1997-07-09 Matsushita Communication Ind U Power supply for intermittent load
GB2310570A (en) * 1996-02-21 1997-08-27 Motorola Israel Ltd Subscriber unit with power supply operable in linear and switched modes; portable radio data packet modem

Also Published As

Publication number Publication date
GB2328844A (en) 1999-03-03
GB9718471D0 (en) 1997-11-05

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050902